Newman, B. M., & Newman, P. R. (1975). Development through life: A psychosocial approach. Dorsey Press.
Lua i Stíl Chicago (17ú heag.)Newman, Barbara M., agus Philip R. Newman. Development Through Life: A Psychosocial Approach. Homewood, Ill.: Dorsey Press, 1975.
Lua MLA (8ú heag.)Newman, Barbara M., agus Philip R. Newman. Development Through Life: A Psychosocial Approach. Dorsey Press, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.